--- /dev/null
+/*
+winnie - an experimental window system
+
+Copyright (C) 2013 Eleni Maria Stea
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+Author: Eleni Maria Stea <elene.mst@gmail.com>
+*/
+
+#include <algorithm>
+#include <limits.h>
+#include <stdexcept>
+#include <stdio.h> // TODO
+
+#include "gfx.h"
+#include "mouse.h"
+#include "mouse_cursor.h"
+#include "shalloc.h"
+#include "text.h"
+#include "window.h"
+#include "winnie.h"
+#include "wm.h"
+
+#define DCLICK_INTERVAL 400
+
+WindowManager *wm;
+
+static void display(Window *win);
+static void mouse(Window *win, int bn, bool pressed, int x, int y);
+static void motion(Window *win, int x, int y);
+
+bool init_window_manager()
+{
+ void *wm_mem;
+ if(!(wm_mem = sh_malloc(sizeof *wm))) {
+ return false;
+ }
+
+ wm = new (wm_mem) WindowManager;
+
+ get_subsys()->wm_offset = (int)((char*)wm - (char*)get_pool());
+
+ return true;
+}
+
+void destroy_window_manager()
+{
+ wm->~WindowManager();
+ sh_free(wm);
+}
+
+void WindowManager::create_frame(Window *win)
+{
+ Window *frame = new Window;
+ Window *parent = win->get_parent();
+
+ frame->set_display_callback(display);
+ frame->set_mouse_button_callback(mouse);
+ frame->set_mouse_motion_callback(motion);
+ frame->set_focusable(false);
+ frame->add_child(win);
+
+ windows.push_back(frame);
+
+ Rect win_rect = win->get_rect();
+ frame->move(win_rect.x - frame_thickness,
+ win_rect.y - frame_thickness - titlebar_thickness);
+ frame->resize(win_rect.width + frame_thickness * 2,
+ win_rect.height + frame_thickness * 2 + titlebar_thickness);
+
+ win->move(frame_thickness, frame_thickness + titlebar_thickness);
+ parent->add_child(frame);
+}
+
+void WindowManager::destroy_frame(Window *win)
+{
+ Window *frame = win->parent;
+ if(!frame) {
+ return;
+ }
+
+ if(grab_win == win) {
+ release_mouse();
+ }
+
+ std::list<Window*>::iterator it;
+ it = std::find(windows.begin(), windows.end(), frame);
+ if(it != windows.end()) {
+ root_win->add_child(win);
+ windows.erase(it);
+ delete frame;
+ }
+}
+
+WindowManager::WindowManager()
+{
+ if(!wm) {
+ wm = this;
+ } else {
+ throw std::runtime_error("Trying to create a second instance of WindowManager!\n");
+ }
+
+ root_win = new Window;
+ root_win->resize(get_screen_size().width, get_screen_size().height);
+ root_win->move(0, 0);
+ root_win->set_managed(false);
+
+ grab_win = 0;
+ focused_win = 0;
+ background = 0;
+
+ bg_color[0] = 210;
+ bg_color[1] = 106;
+ bg_color[2] = 106;
+
+ frame_thickness = 8;
+ titlebar_thickness = 16;
+
+ set_focused_frame_color(0, 0, 0);
+ set_unfocused_frame_color(200, 200, 200);
+
+ mouse_cursor.set_image(mouse_cursor_width, mouse_cursor_height);
+ unsigned char *pixels = mouse_cursor.get_image();
+
+ for(int i=0; i<mouse_cursor_height; i++) {
+ for(int j=0; j<mouse_cursor_width; j++) {
+ int val = mouse_cursor_bw[i * mouse_cursor_width + j];
+ *pixels++ = val;
+ *pixels++ = val;
+ *pixels++ = val;
+ *pixels++ = 255;
+ }
+ }
+}
+
+WindowManager::~WindowManager()
+{
+ delete root_win;
+}
+
+void WindowManager::invalidate_region(const Rect &rect)
+{
+ dirty_rects.push_back(rect);
+}
+
+void WindowManager::process_windows()
+{
+ if(dirty_rects.empty()) {
+ return;
+ }
+
+ std::list<Rect>::iterator drit = dirty_rects.begin();
+ Rect uni = *drit++;
+ while(drit != dirty_rects.end()) {
+ uni = rect_union(uni, *drit++);
+ }
+ dirty_rects.clear();
+
+ wait_vsync();
+
+ if(!background) {
+ fill_rect(uni, bg_color[0], bg_color[1], bg_color[2]);
+ }
+ else {
+ blit(background->pixels, Rect(0, 0, background->width, background->height),
+ get_framebuffer(), get_screen_size(), 0, 0);
+ }
+
+ root_win->draw_children(uni);
+
+ // draw mouse cursor
+ int mouse_x, mouse_y;
+ get_pointer_pos(&mouse_x, &mouse_y);
+
+ blit_key(mouse_cursor.get_image(), mouse_cursor.get_rect(),
+ get_framebuffer(), get_screen_size(), mouse_x, mouse_y,
+ 0, 0, 0);
+
+ Rect mouse_rect(mouse_x, mouse_y, mouse_cursor.get_width(), mouse_cursor.get_height());
+ invalidate_region(mouse_rect);
+
+ gfx_update(uni);
+}
+
+void WindowManager::add_window(Window *win)
+{
+ if(!win || win == root_win) {
+ return;
+ }
+
+ root_win->add_child(win);
+
+ if(windows.empty()) {
+ focused_win = win;
+ }
+
+ if(win->get_managed()) {
+ create_frame(win);
+ }
+
+ windows.push_back(win);
+}
+
+void WindowManager::remove_window(Window *win)
+{
+ std::list<Window*>::iterator it;
+ it = std::find(windows.begin(), windows.end(), win);
+
+ if(it != windows.end()) {
+ windows.erase(it);
+ }
+}
+
+void WindowManager::set_focused_window(Window *win)
+{
+ if(win && win == focused_win) {
+ return;
+ }
+
+ Window *parent;
+ if(focused_win) {
+ // invalidate the frame (if any)
+ parent = focused_win->get_parent();
+ if(parent && parent != root_win) {
+ parent->invalidate();
+ fill_rect(parent->get_absolute_rect(), frame_ucolor[0], frame_ucolor[1], frame_ucolor[2]);
+ }
+ }
+
+ if(!win) {
+ focused_win = 0;
+ return;
+ }
+
+ if(win->get_focusable()) {
+ focused_win = win;
+ parent = focused_win->get_parent();
+ fill_rect(parent->get_absolute_rect(), frame_fcolor[0], frame_fcolor[1], frame_fcolor[2]);
+ return;
+ }
+
+ Window **children = win->get_children();
+ for(int i=0; i<win->get_children_count(); i++) {
+ if(children[0]->get_focusable()) {
+ set_focused_window(children[0]);
+ fill_rect(win->get_absolute_rect(), frame_fcolor[0], frame_fcolor[1], frame_fcolor[2]);
+ return;
+ }
+ }
+
+ focused_win = 0;
+}
+
+const Window *WindowManager::get_focused_window() const
+{
+ return focused_win;
+}
+
+Window *WindowManager::get_focused_window()
+{
+ return focused_win;
+}
+
+Window *WindowManager::get_window_at_pos(int pointer_x, int pointer_y)
+{
+ Window *root_win = wm->get_root_window();
+ Window **children = root_win->get_children();
+ for(int i=root_win->get_children_count() - 1; i>=0; i--) {
+ if(children[i]->contains_point(pointer_x, pointer_y)) {
+ return children[i];
+ }
+ }
+
+ return 0;
+}
+
+Window *WindowManager::get_root_window() const
+{
+ return root_win;
+}
+
+void WindowManager::set_focused_frame_color(int r, int g, int b)
+{
+ frame_fcolor[0] = r;
+ frame_fcolor[1] = g;
+ frame_fcolor[2] = b;
+}
+
+void WindowManager::get_focused_frame_color(int *r, int *g, int *b) const
+{
+ *r = frame_fcolor[0];
+ *g = frame_fcolor[1];
+ *b = frame_fcolor[2];
+}
+
+void WindowManager::set_unfocused_frame_color(int r, int g, int b)
+{
+ frame_ucolor[0] = r;
+ frame_ucolor[1] = g;
+ frame_ucolor[2] = b;
+}
+
+void WindowManager::get_unfocused_frame_color(int *r, int *g, int *b) const
+{
+ *r = frame_ucolor[0];
+ *g = frame_ucolor[1];
+ *b = frame_ucolor[2];
+}
+
+void WindowManager::set_background(const Pixmap *pixmap)
+{
+ if(background) {
+ delete background;
+ }
+
+ if(pixmap) {
+ background = new Pixmap(*pixmap);
+ }
+ else {
+ background = 0;
+ }
+}
+
+const Pixmap *WindowManager::get_background() const
+{
+ return background;
+}
+
+Window *WindowManager::get_grab_window() const
+{
+ return grab_win;
+}
+
+void WindowManager::grab_mouse(Window *win)
+{
+ grab_win = win;
+}
+
+void WindowManager::release_mouse()
+{
+ grab_win = 0;
+}
+
+void WindowManager::raise_window(Window *win)
+{
+ if(!win) {
+ return;
+ }
+
+ Window *parent = win->get_parent();
+ if(parent != root_win) {
+ if(parent->get_parent() == root_win) {
+ win = parent;
+ }
+ else {
+ return;
+ }
+ }
+
+ root_win->remove_child(win);
+ root_win->add_child(win);
+}
+
+void WindowManager::sink_window(Window *win)
+{
+ if(!win) {
+ return;
+ }
+
+ std::list<Window*>::iterator it;
+ it = std::find(windows.begin(), windows.end(), win);
+ if(it != windows.end()) {
+ windows.erase(it);
+ windows.push_front(win);
+ }
+}
+
+void WindowManager::maximize_window(Window *win)
+{
+ win->normal_rect = win->rect;
+
+ Rect rect = get_screen_size();
+
+ Window *frame;
+ if((frame = win->get_parent())) {
+ frame->normal_rect = frame->rect;
+ frame->resize(rect.width, rect.height);
+ frame->move(rect.x, rect.y);
+
+ rect.width -= frame_thickness * 2;
+ rect.height -= frame_thickness * 2 + titlebar_thickness;
+ }
+ else {
+ win->move(0, 0);
+ }
+
+ win->resize(rect.width, rect.height);
+ win->set_state(Window::STATE_MAXIMIZED);
+}
+
+void WindowManager::unmaximize_window(Window *win)
+{
+ win->resize(win->normal_rect.width, win->normal_rect.height);
+ win->move(win->normal_rect.x, win->normal_rect.y);
+
+ Window *frame;
+ if((frame = win->get_parent())) {
+ frame->resize(frame->normal_rect.width, frame->normal_rect.height);
+ frame->move(frame->normal_rect.x, frame->normal_rect.y);
+ }
+
+ win->set_state(Window::STATE_NORMAL);
+}
+
+static void display(Window *win)
+{
+ //frame display:
+ Window *child = win->get_children()[0];
+ int r, g, b;
+ Rect abs_rect = win->get_absolute_rect();
+
+ //TODO 5 not hardcoded
+ set_text_position(abs_rect.x + 5, abs_rect.y + 15);
+ set_text_color(255, 255, 255);
+
+ if(child == wm->get_focused_window()) {
+ wm->get_focused_frame_color(&r, &g, &b);
+ fill_rect(abs_rect, r, g, b);
+ }
+ else {
+ wm->get_unfocused_frame_color(&r, &g, &b);
+ fill_rect(win->get_absolute_rect(), r, g, b);
+ }
+
+ draw_text(child->get_title());
+}
+
+static int prev_x, prev_y;
+
+static void mouse(Window *win, int bn, bool pressed, int x, int y)
+{
+ static long last_click = 0;
+
+ if(bn == 0) {
+ if(pressed) {
+ wm->grab_mouse(win);
+ wm->raise_window(win);
+ prev_x = x;
+ prev_y = y;
+ }
+ else {
+ long time = winnie_get_time();
+ if((time - last_click) < DCLICK_INTERVAL) {
+ Window *child = win->get_children()[0];
+ Window::State state = child->get_state();
+ if(state == Window::STATE_MAXIMIZED) {
+ wm->unmaximize_window(child);
+ }
+ else if(state == Window::STATE_NORMAL) {
+ wm->maximize_window(child);
+ }
+ }
+ last_click = time;
+
+ wm->release_mouse();
+ }
+ }
+}
+
+static void motion(Window *win, int x, int y)
+{
+ int left_bn = get_button(0);
+
+ if(left_bn) {
+ int dx = x - prev_x;
+ int dy = y - prev_y;
+ prev_x = x - dx;
+ prev_y = y - dy;
+
+ if(win->get_children()[0]->get_state() != Window::STATE_MAXIMIZED) {
+ Rect rect = win->get_rect();
+ win->move(rect.x + dx, rect.y + dy);
+ }
+ }
+}
projects / winnie / blobdiff